Mr. R. Shelford's Studies of the Blattidae. 313 



4'. Tegmina with basal two- 

 fifths castaneous, re- 

 mainder testaceous . . . G. jocosa, Shelf. 

 2'. Pronotum testaceous or flavo- 

 testaceous with lyrate chiselled 

 markings on the disc. 

 3. Lyrate markings on disc 

 of pronotum obsolescent. 

 (Bright flavous species) . . Q. laticoda, Walk. 

 3'. Lyrate markings on disc of 

 pronotum not obsolescent. 

 4. Small species (not exceeding 

 22 mm.). 

 5. Eyes nearly touching on 



vertex of head ...(?. ohloncja, Borg. 

 5'. Eyes not nearly touching 

 on vertex of head. 

 6. Frons strongly striate . G. nigrifrutis, Bol. 

 6'. Frons not .slrongly 



striate G. perinijneyi., sp. n. 



4'. Larger species. 

 5. Antennae bifasciated with 

 ochreous. 

 6. Mediastinal field of 

 tegmina opaque test- 



^'^sous G. centurio, Dohrn. 



6'. Mediastinal field con- 

 colorous with rest of 



tegmina G. sculpturata, sp. n. 



5'. Antennae not bifasciated 

 with ochreous. 



6 6 



6. Eyes touching or nearly 



touching on vertex of 



head. 



7. Tegmina Avith rules- 



cent macula in 



centre of disc. 



8. Antennae rufo- 



fuscons or fuscous G. aetola, sp. n. 

 8'. Antennae piceous, 

 nitid. 

 9. Distance apart of 

 eyes on vertex 



